Bear in mind that this technique can only produce light, not absorb it --- which means no hidden line removal, so it'll be good for wireframe images only, where you can see all sides of the shape at once. That doesn't mean it's not awesomely cool, but it's going to have limited applications.
IIRC, the piston-head technique has been tried before, and has always had the drawback that it's hellishly loud due to air displacement. I wonder how they're getting round this?
IIRC, the piston-head technique has been tried before, and has always had the drawback that it's hellishly loud due to air displacement. I wonder how they're getting round this?